dc9be1eee6
This option enables overriding packages within the generated Emacs
package set.
Fixes #486
(cherry picked from commit e68d6e7924)
71 lines
1.6 KiB
Nix
71 lines
1.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.programs.emacs;
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# Copied from all-packages.nix, with modifications to support
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# overrides.
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emacsPackages =
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let
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epkgs = pkgs.emacsPackagesNgGen cfg.package;
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in
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epkgs.overrideScope' cfg.overrides;
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emacsWithPackages = emacsPackages.emacsWithPackages;
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in
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{
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meta.maintainers = [ maintainers.rycee ];
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options = {
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programs.emacs = {
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enable = mkEnableOption "Emacs";
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package = mkOption {
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type = types.package;
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default = pkgs.emacs;
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defaultText = "pkgs.emacs";
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example = literalExample "pkgs.emacs25-nox";
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description = "The Emacs package to use.";
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};
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extraPackages = mkOption {
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default = self: [];
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defaultText = "epkgs: []";
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example = literalExample "epkgs: [ epkgs.emms epkgs.magit ]";
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description = "Extra packages available to Emacs.";
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};
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overrides = mkOption {
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default = self: super: {};
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defaultText = "self: super: {}";
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example = literalExample ''
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self: super: rec {
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haskell-mode = self.melpaPackages.haskell-mode;
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# ...
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};
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'';
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description = ''
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Allows overriding packages within the Emacs package set.
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'';
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};
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finalPackage = mkOption {
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type = types.package;
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internal = true;
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readOnly = true;
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description = "The Emacs package including any extra packages.";
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};
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};
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};
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config = mkIf cfg.enable {
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home.packages = [ cfg.finalPackage ];
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programs.emacs.finalPackage = emacsWithPackages cfg.extraPackages;
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};
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}
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